FACTS – Flexible AC
Transmission Systems
Static Var Compensators
Answers for energy.
Reference List
Static Var Compensation
Rely on our experience
Nowadays, power producers and providers throughout the world are faced
with greater demands for bulk power flow, lower-cost power delivery,
and higher reliability. Siemens as a leading manufacturer of FACTS devices
delivers systems throughout the world.
Siemens solutions for advanced power delivery bring a number of major benefits including:
■ Steady state and dynamic voltage control
■ Reactive power control of dynamic loads
■ Damping of active power oscillations
■ Improvement of system stability and power quality
■ High reliability under system contingencies
The total installed capacity of Siemens Static Var Compensators exceeds 30,000 MVAr
granting a true global experience and customer support.
References described
in this brochure
References not described in this brochure
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Lakehead, Canada
in service since 2010
Alligator Creek, Australia
in service since 2009
Bellaire, USA
in service since 2008
Crosby, USA
in service since 2008
Strathmore, Australia
in service since 2007
Sinop, Brazil
in service since 2007
São Luis, Brazil
in service since 2007
Nopala, Mexico
in service since 2007
Segaliud & Dam Road,
Malaysia
in service since 2006
Ahafo, Ghana
in service since 2006
Shinyanga & Iringa, Tanzania
in service since 2006
Limpio, Paraguay
in service since 2003
Funil, Brazil
in service since 2001
La Pila, Mexico
in service since 1999
Cerro Gordo, Mexico
in service since 1998
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Chinú, Colombia
in service since 1998
Muldersvlei, South Africa
in service since 1997
Rejsby Hede, Denmark
in service since 1997
Adelanto & Marketplace, USA
in service since 1994 / 1995
Jember, Indonesia
in service since 1994
Feckenham, UK
in service since 1994
Drakelow, UK
in service since 1994
Harker, UK
in service since 1993
Eddy County, USA
in service since 1992
Pelham I + II, UK
in service since 1991
Kemps Creek I + II, Australia
in service since 1989
Brushy Hill, Canada
in service since 1986
Banabuiu, Brazil
in service since 1983
Milagres, Brazil
in service since 1983
Fortaleza, Brazil
in service since 1982
Zem Zem, Libya
in service since 1982
In-service date
Page
01
1995
Impala,
Illovo & Athene
South
Africa
6
02
2002
Bom Jesus da Lapa
Brazil
7
03
2004
Siems
Germany
8
04
2006
2005
Porter & Ninemile
USA
9
05
2006
Devers
USA
10
06
2006
Radsted
Denmark
11
07
2007
Railways & Nebo
Australia
12
08
2008
Greenbank &
Southpine
Australia
14
09
2010
Elmhurst
USA
15
10
2010
Islington
New
Zealand
16
11
2011
Chevire
France
17
12
2011
Nanticoke
Canada
18
13
2012
Hiteen,
Qassim & Afif
Saudi
Arabia
19
3
References worldwide
Utility Static Var Compensators delivered by Siemens.
Bellaire
Center Point Energy, USA
(0 / 140 MVAr)
138 kV
2008
Crosby
Center Point Energy, USA
(0 / 140 MVAr)
138 kV
2008
Eddy County
SPS, USA
(–50 / 100 MVAr)
230 kV
1992
Lakehead
Hydro One, Canada
(–40 / 45 (60) MVAr)
230 kV
2010
Nanticoke
Hydro One, Canada
(0 / 350 MVAr)
500 kV
2011
Brushy Hill
NSPC, Canada
(–20 / 120 MVAr)
138 kV
1986
Elmhurst
ComEd, USA
2 x (0 / 300 MVAr)
230 kV
2010
Adelanto &
Marketplace
WSCC, USA
(0 / 388 MVAr)
500 kV
1994 / 1995
La Pila
CFE, Mexico
(–70 / 200 MVAr)
230 kV
1999
06
03
3
Devers
SCE, USA
(–110 / 330 (440/1 h) 605) MVAr
500 kV
2006
Chevire
RTE, France
(–100 / 100 (250) MVAr)
225 kV
2011
12
09
11
05
Porter & Ninemile
Entergy, USA
(0 / 300 MVAr)
138 / 230 kV
2005 / 2006
04
Cerro Gordo
Luz y Fuerza, Mexico
(–75 / 300 MVAr)
230 kV
1998
Nopala
CFE, Mexico
(–90 / 300 MVAr)
400 kV
2007
02
Chinú
ISA, Colombia
(–150 / 250 MVAr)
500 kV
1998
Bom Jesus da Lapa
Enelpower, Brazil
(–250 / 250 MVAr)
500 kV
2002
Funil
CHESF, Brazil
(–100 / 200 MVAr)
230 kV
2001
Sinop
ELETRONORTE, Brazil
(–20 / 55 MVAr)
230 kV
2007
4
Milagres
CHESF, Brazil
(–70 / 100 MVAr)
230 kV
1983
Banabuiu
CHESF, Brazil
(–70 / 100 MVAr)
230 kV
1983
Fortaleza
CHESF, Brazil
(–140 / 200 MVAr)
230 kV
1982
São Luis
ELETRONORTE, Brazil
(–100 / 150 MVAr)
230 kV
2007
Limpio
ANDE, Paraguay
(–150 / 250 MVAr)
220 kV
2003
Ahafo
CONCO, Ghana
(–40 / 0 MVAr)
161 kV
2006
Harker
NGC, UK
(–75 / 150 MVAr)
275 kV
1993
Drakelow
NGC, UK
(–75 / 150 MVAr)
275 kV
1994
Feckenham
NGC, UK
(–75 / 150 MVAr)
275 kV
1994
Pelham I + II
NGC, UK
(–75 / 150 MVAr)
400 kV
1991
Rejsby Hede
ELSAM, Denmark
(–8 / 8 MVAr)
15 / 3 kV
1997
Radsted
SEAS-NVE, Denmark
(–65 / 80 MVAr)
132 kV
2006
Hiteen
Saudi Electricity Company,
Saudi Arabia
(–200 / 600 (800) MVAr)
380 kV
2012
Qassim
Saudi Electricity Company,
Saudi Arabia
(–150 / 450 MVAr)
132 kV
2012
Afif
Saudi Electricity Company,
Saudi Arabia
(–50 / 100 MVAr)
33 kV
2012
Siems
E.ON Netz GmbH, Germany
(–100 / 200 MVAr)
380 kV
2004
Zem Zem
ELPCO, Libya
(–50 / 25 MVAr)
230 kV
1982
13
Segaliud & Dam Road
SESB, Malaysia
(–60 / 60 MVAr)
132 / 275 kV
2006
Jember
PLN, Indonesia
(–25 / 50 MVAr)
150 kV
1994
01
Railways & Nebo
Powerlink, Australia
Refurbishments
(–80 / 260 MVAr)
132 / 275 kV
2007
Greenbank & Southpine
Australia
(–100 / 250 (350) MVAr)
275 kV
2008
07
08
Shinyanga & Iringa
TANESCO, Tanzania
(–30 / 35 MVAr)
220 / 220 kV
2006
Impala,
Illovo & Athene
ESKOM, South Africa
(–300 / 100 MVAr)
275 / 275 / 400 kV
1995
Muldersvlei
ESKOM, South Africa
(–150 / 200 MVAr)
400 kV
1997
10
Alligator Creek
Powerlink, Australia
(–80 / 150 (230) MVAr)
132 kV
2009
Strathmore
Powerlink, Australia
(–80 / 180 (260) MVAr)
275 kV
2007
Islington
Transpower, New Zealand
(–75 / 150 MVAr)
220 kV
2010
Kemps Creek I + II
ECNSW, Australia
(–100 / 150 MVAr)
330 kV
1989
5
Impala, Illovo & Athene
Voltage stability to ensure security of power supply
Richards Bay is a major industrial centre of the Republic of
South Africa with aluminium smelter plants, paper mills and
open-cast Mining, among others located in the region. With the
main generation centres of the Transvaal over 200 km away,
maintaining a stable and secure supply to this region is critical.
In 1994 and 1995 Siemens successfully installed three Static
Var Compensators for the South African Utility ESKOM
(Electricity Supply Commission) at their 275 kV substations
(Impala and Illovo) and at their newly built 400 kV substation
Athene. The NATAL Static Var Compensators are designed for:
■ Fast dynamic network stabilization
(voltage stabilisation)
■ Reduction of voltage unbalance
■ Reduction of network disturbances
■ Increasing of transmission capability
■ Control of external reactive-power devices
Customer
ESKOM, South Africa
System Voltage
275 kV / 50 Hz; 400 kV / 50 Hz
Transformer
4 x 66.7 MVA
Operating range
+ 100 MVAr (capacitive) to
– 300 MVAr (inductive)
Definition of SVC
Branch circuits
2 x TCR
3 x Filters
275 kV / 400 kV, 50 Hz
L TCR 1
2
L TCR 2
2
L TCR 1
2
L TCR 2
2
LF1
LF2
LF3
CF1
CF2
CF3
Filter 1 Filter 2 Filter 3
TCR 1
TCR 2
Harare
Mozambique
Zimbabwe
Namibia
Botswana
Swaziland
Johannesburg
Oran
ge
Transvaal
Generation
South Africa
6
Cape Town
Illovo
Athene
Impala
Durban
500 kV, 60 Hz
L TSC 1
CTSC 1
TSC 1
LF1
LF2
CF1
CF2
Filter 1
Filter 2
L TCR 1
2
L TCR 2
2
L TCR 1
2
L TCR 2
2
TCR 1
TCR 2
Bom Jesus da Lapa
The largest SVC in South America built in record
construction time
This Static Var Compensator, located at the 500 kV Bom Jesus da
Lapa II substation, maintains voltage stability over the 1100 km
long 500 kV overhead transmission line between the Serra da
Mesa substation and the Sapeaçu substation near Salvador in
the northeast of the country.
This large Siemens SVC with a control rating of 500 MVAr was
built in the record time of only 12 months for the Italian
Enelpower utility company to strengthen the east-west grid
interconnection in Brazil‘s northeast under the project name
“Interligação Sudeste–Nordeste“. Similar to the solution for the
Funil SVC, all electronic power components needed for compensation were installed in steel containers.
Since its commissioning in December 2002, the SVC at Bom
Jesus da Lapa II substation has been stabilizing voltage and
frequency across the grid, minimizing losses and responding
swiftly and reliably to load changes.
Customer
Enelpower, Brazil
System Voltage
500 kV / 60 Hz
Transformer
4 x 83.3 MVA
Operating range
+ 250 MVAr (capacitive) to
– 250 MVAr (inductive)
Definition of SVC
Branch circuits
2 x TCR
1 x TSC
2 x Filters
7
Siems
The first utility SVC in Germany
The HVDC Baltic Cable (with a transmission capacity of +/–600 MW)
was constructed in the early nineties to link the power systems of
Germany and Sweden. To ensure optimum dynamic system operation the original plan was to connect the Herrenwyk HVDC converter
station in Germany to the 380 kV grid. However, due to changes in
the European power market, this connection was abandoned and
the HVDC link was consequently connected to the 110 kV network in
the Lübeck district, which is inadequately dimensioned in terms of
necessary system impedance.
Due to this and based on detailed network studies, E.ON decided
to carry out several extensions in the northern German power
network between 2003 and 2004. In conjunction with these
extensions and considering the highly dynamic behaviour of the
Herrenwyk HVDC converter station, E.ON Netz GmbH awarded a
turnkey contract to Siemens to build a new SVC on the former site
of the Lübeck-Siems power plant in November 2003, in order to
ensure voltage quality in its northern 380 kV grid.
The Thyristor Controlled Reactors had to be built indoors to fulfill
very stringent requirements regarding noise emissions, using
special noise damping materials and methods. The project also
included the first-ever implementation (in an SVC) of the highreliable control system based on SIMATIC TDC®, a proven industrial
hardware design from Siemens. The SVC was successfully put into
commercial operation only 12 months after the contract had been
signed.
Customer
E.ON Netz GmbH, Germany
System Voltage
380 kV / 50 Hz
Transformer
200 MVA
Operating range
+ 200 MVAr (capacitive) to
– 100 MVAr (inductive)
Definition of SVC
Branch circuits
1 x TCR
1 x TSC
2 x Filters
380 kV, 50 Hz
CTSC 1
L TCR 1
2
L1DTF
L TSC 1
L2DTF
C2DTF
LF1
L TCR 1
2
TCR 1
CF1
TSC 1
Filter 1
C1DTF
Filter 2
Lübeck
Poland
Berlin
Netherlands
Germany
Belgium
Luxembourg
8
Czech Rep.
Denver
St Louis
United States of America
Co
lor
ad
o
Chicago
Ar
Santa Fe
ka
Phoenix
ns
as
Dallas
New Orleans
Rio
Mexico
Gr
Porter
Houston
an
de
Monterrey
Ninemile
Gulf of
Mexico
Porter & Ninemile
Application of Static Var Compensators in Entergy’s system
to address voltage stability issues
Based on planning studies, two major load centers (The Westbank area near New Orleans and the Woodlands area just north
of Houston) in Entergy’s network were identified as areas with
potential voltage stability problems.
After evaluation of technical, economical and reliability factors,
SVCs were considered as the preferred solution for both of these
areas. In conjunction with Entergy’s SVC design specifications,
two SVCs and a Fixed Series Capacitor (FSC) were awarded on a
turnkey basis to Siemens Power Transmission Division in 2004.
The first 300 MVAr SVC was commissioned at the Ninemile
230 kV station in the New Orleans area in May 2005. The
second 300 MVAr SVC at Porter 138 kV station as well as the
new FSC at Dayton Substation entered into operation in
Entergy’s Western Region near Houston, Texas in April 2006.
Customer
Entergy, USA
System Voltage
230 kV / 60 Hz (Ninemile)
138 kV / 60 Hz (Porter)
Transformer
4 x 100 MVA each SVC
Operating range
+ 300 MVAr (capacitive) to
0 MVAr (inductive)
Definition of SVC
Branch circuits
3 x TSC
9
Devers
Strengthening the transmission path
between Arizona and California
One of the largest SVCs in the US is located at Devers 500 kV
substation, near Palm Springs, California. The Devers SVC was
ordered by SCE (Southern California Edison) as a turnkey project
in September 2005 to strengthen the Devers-Palo Verde transmission path from Arizona to California. Since it was put into
commercial operation in September 2006 the SVC adds additional
voltage support to the Palm Springs area, thus SCE can increase
its import transmission capability from Arizona during high
demands period.
The full capacitive output of the SVC of 330 MVAr is provided by
two TSC branches and two filter branches. The capacitive output
of 440 MVAr for 1 h is provided by three TSC branches, two filter
branches and one TCR in operation. The SVC’s full inductive output of 110 MVAr is provided by two TCR branches operating in
parallel with the filters.
In addition to the SVC, an MSC of 165 MVAr connected to the
525 kV bus was included in the scope of supply, conforming a
Static Var System (SVS) with total capacitive output of 605 MVAr.
Customer
SCE, USA
System Voltage
525 kV / 60 Hz
Transformer
4 x 100 MVA
Operating range
+ 330 MVAr up to –110 MVAr (inductive)
+ 440 MVAr capacitive for one hour
+ 605 MVAr max.
Definition of SVC
Branch circuits
2 x TCR
3 x TSC
2 x Filters
MSC
525 kV, 60 Hz
Filter 2
CF2
LF2
L TCR 1
2
LTSC 1
LTSC 2
L TCR 2
2
LTSC 3
LF1
CF1
CMSC
L TCR 1
2
TCR 1
CTSC 1
TSC 1
CTSC 2
TSC 2
L TCR 2
2
CTSC 3
TSC 3
TCR 2
L MSC
Filter 1
MSC
Los Angeles
San Diego
Co
San Francisco
lor
ado
United States
of America
Phoenix
Mexico
10
Norway
Sweden
Denmark
Copenhagen
Poland
Germany
Netherlands
132 kV, 50 Hz
Radsted
Y
Δ
Y
An SVC, that controls voltage fluctuations
caused by an offshore windpark
LTCR 1
SEAS-NVE, the largest utility in Denmark operates the Nysted
Offshore Windpark located south of the island of Lolland. Voltage
fluctuations caused by this facility lead to voltage stability problems
in the 132 kV transmission system. In June 2005, Siemens was
awarded a turnkey project for the construction of an SVC located
on the island of Lolland. It provides the necessary reactive power
balance for the system, helps to improve voltage quality and
increases system stability.
Siemens offered a special solution for this project: the SVC has
a 12-pulse configuration consisting of a TCR (Thyristor Controlled
Reactor) and a filter in each of the two secondary circuits of the
3-winding step-down power transformer. One of the transformer’s
secondary winding is connected in star, while the other is connected
in delta. The delivered high-pass filters are tuned to the 11th
harmonic and are connected in star. The 12-pulse configuration
has the advantage that due to the phase shift in the two secondary
busbars of the SVC, the 5th, 7th, 17th and 19th harmonics produced
by each of the TCR branches cancel each other out, helping to
meet the stringent harmonic requirements.
Furthermore Siemens took special care to fulfill the customer’s
requirements in terms of noise reduction and architectural appearance. Therefore, the SVC was completely housed in a “barn-type”
building equipped with special sound muffling materials and
components. The buildings height was kept below 6 meters,
made possible by optimizing the equipment configuration inside.
LTCR 2
LF 1
RF 1
LF 2
CF 1
TCR 1
Filter 1
RF 2
CF 1
Filter 2
Customer
SEAS-NVE, Denmark
System Voltage
132 kV / 50 Hz
Transformer
80.2 MVA
Operating range
+ 80.2 MVAr (capacitive) to
– 65 MVAr (inductive)
Definition of SVC
Branch circuits
12-pulse configuration
2 x TCR
2 x Filters
TCR 2
11
Refurbishment of the Nebo SVC
Just five months delivery time for a TSC-Valve
In spring 2005 the refurbishment of Powerlink’s Nebo SVC
(originally built by a competitor) was awarded to Siemens.
The scope of work for this SVC, consisiting of a Thyristor
Switched Capacitor (TSC) and a Thyristor Controlled Reactor
(TCR) branch, included the thyristor valves and accessories,
the thyristor cooling system and the complete control and
protection system.
Since the TSC plays an important role in Powerlink’s network,
the contract was divided into two parts, the first of which
placed two major challenges.
■ To replace the damaged TSC valve in only five months – and
to integrate a Siemens TSC valve into a competitor’s control
and protection system. The key to success was a very detailed
status quo investigation including thorough checks of all
interfaces – and minute logistic planning.
■ The complete Control and Protection System and the TCR
valve were successfully refurbished and Powerlink took over
the complete refurbished SVC even before the contractual
date of practical completion.
12
Customer
Powerlink, Australia
System Voltage
275 kV / 50 Hz
Transformer
180 MVA
Operating range
+ 260 MVAr (capacitive) to
– 80 MVAr (inductive)
Definition of SVC
Branch circuits
1 x TCR
1 x TSC
2 x STF
SVCs for railway system
A 48-hours outage solution from Siemens
Oonooie
Mackay
Nebo
Coppabella
Moranbah
Mt. McLaren
Dysart
Gregory
Rockhampton
Blackwater
Grantleigh
Dingo
Australia
Bundaberg
At almost the same time as the Nebo project,
Powerlink placed another refurbishment order
for nine SVCs in their network. These SVCs are
supporting an important railway system in central
Queensland used for transporting coal from the
inland mines to the coal terminals at Queensland’s
coastline. The scope of work included the replacement of the thyristor valves, the cooling system and
the web based control and protection system, which
encompasses the remote control of the SVCs. To
support the coal transport system’s reliability, the
SVCs had to remain in service as long as possible
throughout the refurbishment project.
Only Siemens was able to offer a solution that limited
the outage time per site to 48 hours: This was
achieved by introducing a mobile SVC solution that
can be used during the main refurbishment work
on each site. Thus, shutdown is only required to
re-establish connections to the mobile system after
disconnecting the existing system and, of course,
for testing. The Railway SVC refurbishment project
was completed at the end of 2007.
13
Greenbank & Southpine
Voltage support to the greater area of Brisbane
In April 2007 Siemens Energy was awarded a turnkey contract
for two SVCs at Greenbank and South Pine substations in the
South East Queensland (SEQ) 275 kV grid of Australia. With
the installation customer Powerlink plan to provide sufficient
power compensation and to add additional voltage support
to the greater area of Brisbane by dynamic reactive power
compensation.
The SVCs have a nominal operating range of 100 MVAr inductive
to 250 MVAr capacitive with an overload of up to 350 MVAr for
one hour. Each SVC consists of one thyristor controlled reactor
(TCR), two thyristor switched capacitors (TSC) and three fixed
filter circuits for harmonics.
Being the turnkey contractor, Siemens was responsible for
design engineering, delivery, civil and assembly works as well
as site testing. Transformers were manufactured locally in
Australia and Siemens Germany delivered the core technology,
i.e. thyristor valves and the SVC control & protection (C&P)
system, assembled and tested.
The successful team effort by the international management
team achieved the completion for both sites on time.
Greenbank and Southpine SVCs started operation in 2008.
Customer
Powerlink, Australia
System Voltage
275 kV / 50 Hz
Transformer
250 MVA
Operating range
–100 / 250 (350) MVAr
Definition of SVC
Branch circuits
1 x TCR
2 x TSC
3 x Filter
275 kV, 50 Hz
Filter 2
CF1
LF1
L TCR 1
2
LTSC 1
LTSC 2
LF1
CF1
LF3
CF3
CMSC
L TCR 1
2
TCR 1
CTSC 1
TSC 1
Australia
14
CTSC 2
TSC 2
LMSC
Filter 1 Filter 3 MSC
Canada
United States of America
138 kV, 60 Hz
LTSC 1
LTSC 2
LTSC 3
CTSC 1
CTSC 2
CTSC 3
TSC 1
TSC 2
TSC 3
The Elmhurst SVCs –
Enhancement of power availability and reliability for
ComEd’s power grid in the area of Chicago, Illinois
In November of 2008 Siemens Energy, Inc. was awarded a turnkey
contract for two 138 kV Static Var Compensators (SVC’s) by Commonwealth Edison Company (ComEd) for the Elmhurst Substation
in Chicago, USA. The installation of the Elmhurst SVCs will contribute
to the stabilization of the Northeast Subzone (NESZ) within ComEd’s
heavily populated northern Illinois service territory. This will be the
first SVC application that ComEd has awarded for installation in their
system.
Commonwealth Edison Company (ComEd) is a unit of the Chicagobased Exelon Corporation (NYSE: EXC), one of the nation’s largest electric utilities. Its’s mission is to maintain the performance of its electrical
transmission and distributions systems of its region while providing
the customers with reliable and economical electrical service.
Two Siemens’ SVCs with an availability of nearly 100 % will be installed
at the Commonwealth Edison substation in Elmhurst, to maintain
transmission stability into the future. The turnkey contract includes
all equipment and civil works for two identical SVCs, rated at 0/+300
MVar each. One SVC consists of three Thyristor Switched Capacitors
(TSC) branches.
During normal operation the SVCs will only be controlling the existing
Mechanically Switched Capacitor Banks (MSCs) at Elmhurst to provide
steady state VAR support. In case of voltage drop, the TSC’s will respond
immediately and offer voltage stability.
Using the TSC’s only in case of an emergency avoids additional
losses to the grid.
Customer
ComEd, USA
System Voltage
138 kV / 60 Hz
Transformer
300 MVAr
Operating range
2 x (0 / 300) MVAr
Definition of SVC
Branch circuits
3 x TSC
15
Islington
Voltage stabilization around Christchurch
System studies by Transpower, the transmission utility in New Zealand,
identified insufficient dynamic reactive support under some situations,
for satisfactory voltage recovery following a system disturbance in the
region surrounding Christchurch in the South Island.
In March 2007 Siemens Energy was awarded a turnkey contract for
a SVC at Islington substation. The installed SVC has a nominal swing
range of 75 MVAr inductive to 150 MVAr capacitive. The SVC consists
of a thyristor controlled reactor (TCR), thyristor switched capacitors
(TSC) and 2 fixed harmonic filters. The SVC is connected to the 220 kV
bus with a dedicated power (3rd party) transformer.
As turnkey contractor, Siemens was responsible for project management, engineering, procurement, delivery, civil and assembly works
as well as site testing & commissioning.
Siemens Germany delivered HV switchgear, valves and associated
cooling system, control & protection (C&P) systems, Trench reactors
and capacitors.
The local Siemens team (on-shore) based in AUS/NZ managed the
total project and delivered a successful project on time by carefully
managing on-shore and off-shore resources & third-party local
suppliers and sub-contractors. The result was an efficient progress
of the sequential civil works, construction, installation and commissioning periods. Transpower particularly commended Siemens on
construction site management and safety performance.
The Islington SVC entered commercial operation in September 2009.
Customer
Transpower, New Zealand
System Voltage
220 kV / 50 Hz
Transformer
3 x 50 MVAr
Operating range
–75 / 150 MVAr
Definition of SVC
Branch circuits
1 x TCR
1 x TSC
1 x Filter
220 kV, 50 Hz
L TCR 1
2
LTSC 1
LF1
CF1
L TCR 1
2
TCR 1
CTSC 1
TSC 1
New Zealand
16
Filter 1
Belgium
Germany
Luxembourg
Switzerland
France
Italy
Spain
225 kV, 50 Hz
L TCR 1
2
LTSC 1
LF1
CF1
CMSC
LMSC
L TCR 1
2
TCR 1
CTSC 1
TSC 1
Filter 1
MSC
Chevire
Strengthening the 225 kV network in Brittany, France
A new Static Var Compensator (SVC) in RTE’s existing 225 kV
Cheviré substation is scheduled to be energized in Nantes,
in the north-west of France by end of October 2011.
The SVC will provide dynamic control of the 225 kV network
voltage of the Brittany region during high demand periods as,
in the past, Brittany network was one of the weakest in France.
The SVC output will range from 100 MVAr inductive to 100 MVAr
capacitive at 225 kV and additionally contain and control one
mechanically switched capacitor bank of 150 MVAr.
RTE is managing the largest network in Europe, ensuring
connections between France and its neighbors. The utility
is an essential link in the European electricity market. It takes
part in constructing the European electricity market by playing
a structuring role, thus contributing to better use of the different
sources of energy on a European level. The SVC from Siemens
will help to stabilize the RTE network especially in the Brittany
region.
Customer
RTE, France
System Voltage
225 kV / 50 Hz
Transformer
100 MVAr
Operating range
100 / 100 (250) MVAr
Definition of SVC
Branch circuits
1 x TCR
1 x TSC
1 x Filter
MSC
17
Nanticoke
New Static Var Compensator (SVC) for Nanticoke in Canada
In August 2009 Siemens signed the turnkey contract for
engineering, delivery of components, erection and commissioning for the Static-Var-Compensators (SVC) at the Nanticoke
substation in Canada. The SVC has a nominal operating range
of 0 MVAr to 350 MVAr capacitive. The customer, Hydro One,
requires the SVC to facilitate post contingency voltage stability
in their 500 kV grid associated with the planned shutdown of
a central 4000 MW coal-fired generating source.
The Nanticoke SVC includes 5 TSC branches and is equipped
with a redundant contol system and four single-phase transformers. Start of commercial operation is scheduled for mid
2011.
Customer
Hydro One, Canada
System Voltage
500 kV, 60 Hz
Transformer
4 x 117 MVAr
Operating range
0–350 MVAr
Definition of SVC
Branch circuits
5 x TSC
500 kV, 60 Hz
LTSC 1
LTSC 2
LTSC 3
LTSC 4
LTSC 5
CTSC 1
CTSC 2
CTSC 3
CTSC 4
CTSC 5
TSC 1
TSC 2
TSC 3
Canada
United States
of America
18
TSC 4
TSC 5
Iraq
Iran
Egypt
Saudi Arabia
Sudan
Oman
Yemen
Hiteen
380 kV, 60 Hz
Filter 2
CF2
LF2
L TCR 1
2
LTSC 1
L TCR 2
2
LTSC 2
LF1
CF1
CMSC
L TCR 1
2
TCR 1
CTSC 1
TSC 1
L TCR 2
2
CTSC 2
TSC 2
Qassim
TCR 2
LMSC
Filter 1 MSC
132 kV, 60 Hz
Hiteen, Qassim & Afif
Filter 2
CF2
Siemens to supply technology for stabilization of high-voltage
transmission network in Saudi Arabia
Siemens will supply three static Var compensators (SVCs) for
different high-voltage levels to Riyadh-based Saudi Electricity
Company (SEC) for stabilization of the country’s 60-Hertz power
transmission network. The parallel compensation systems will
be deployed at three Saudi sites in the Hiteen, Quassim and
Afif substations and are scheduled to be ready for operation
between mid-2011 and early 2012. “We are pleased that our
field-proven technology will be deployed to stabilize the Saudi
power transmission network,” said Udo Niehage, CEO of the
Power Transmission Division of Siemens Energy. The three
systems ordered are intended for the 380-kV, 132-kV and 33-kV
voltage levels and will have a dynamic compensation capacity
of as much as 800 MVAr.
Hiteen
Customer
Qassim
380 kV / 60 Hz
132 kV / 60 Hz
Transformer
4 x 200 MVAr
4 x 150 MVAr
Operating range
–200 / 600 (800)
MVAr
–150 / 450 MVAr
2 x TCR
2 x TSC
2 x Filter
MSCDN
2 x TCR
2 x TSC
2 x Filter
Definition of SVC
Branch circuits
L TCR 1
2
LTSC 1
L TCR 2
2
LTSC 2
LF1
CF1
L TCR 1
2
TCR 1
CTSC 1
TSC 1
L TCR 2
2
CTSC 2
TSC 2
Afif
TCR 2
Filter 1
33 kV, 60 Hz
Afif
Saudi Electricity Company, Saudi Arabia
System Voltage
LF2
L TCR 1
2
33 kV / 60 Hz
–50 / 100 MVAr
1 x TCR
6 x Filter
LF1
L TCR 1
2
LF2
CF1
Filter 1
TCR 1
LF3
CF2
CF3
LF4
CF4
Filter 3
Filter 2
LF5
LF6
CF5
CF6
Filter 5
Filter 4
Filter 6
19
Published by and copyright © 2010:
Siemens AG
Energy Sector
Freyeslebenstrasse 1
91058 Erlangen, Germany
Siemens AG
Energy Sector
Power Transmission Division
Power Transmission Solutions
Freyeslebenstrasse 1
91058 Erlangen, Germany
www.siemens.com/energy/facts
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